поставить предложения в пасив Present S. Pres. Cont. Past S. Future S. Past Cont. Fut. Cont.
1)Том и Сем делают свое домашнее задание.
2)Моя старшая сестра пишет доклад.
3)Моя

... бабушка печет пирог.

1. Homework was being done by Tom and Sam.
2. Report was being written by my older sister.
3. Cake was being baked by my grandma.

Past_S
1-Tom and Sam did home work
2-My elder sister wrote a report
3-My grandmother typed a cake
Present_S
1-Tom and Sam usually do home work
2-My elder sister usually write a report
3-My grandmother often type a cake
Present_Cont 
1-Tom and Sam are doing home work
2-My elder sister is writing a report
3-My grandmother is typing a cake
Прости остольное мы еще не проходили)

поставить предложения в актив Present S. Pres. Cont. Past S. Future S. Past Cont. Fut. Cont.
1)Том и Сем делают свое домашнее задание.
2)Моя старшая сестра пишет доклад.
3)Моя

... бабушка печет пирог.

Pr. S - Tom and Sam do their homework. My elder sister writes the report. My grandmother bakes the pie. 
Pr. C - Tom and Sam are doing their homework. My elder sister is writing the report. My grandmother is baking the pie.
P. S - Tom and Sam did their homework. My elder sister wrote the report. My grandmother baked the pie. 
P. C - Tom and Sam were doing their homework. My elder sister were writing the report. My grandmother were baking the pie.
F. S - Tom and Sam will do their homework. My elder sister will write the report. My grandmother will bake the pie. 
F. C - Tom and Sam will be doing their homework. My elder sister will be writing the report. My grandmother will be baking the pie.